Table 2–1. Master Failure Symptom Index (cont)

TM 1–1520–238–T–2 Change 5 2–17 Table 2–1. Master Failure Symptom Index (cont) Failure Symptom Reference MOC ATTD IND CIRCUIT BREAKER (CB20) DOES NOT STAY CLOSED (PILOT ELEC PWR PANEL: BATT EXT/PWR SWITCH SET TO EXT PWR) TM 1–1520–238–T–6 CIRCUIT PROTECTION SYSTEM (AC ESSENTIAL BUS 1 – CPG STATION) ATTD IND CIRCUIT BREAKER DOES NOT STAY CLOSED TM 11–1520–238–23–2 NAVIGATION INSTRUMENTS ATT–HDG INPUT SIGNALS NO–GO SDCC–HARS WIRING MESSAGE DISPLAYED (AN/ASN–137) (ADD) TM 11–1520–238–23–2 TM 1–1520–238–T–3 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–137 (ADD) AUDIO CANNOT BE HEARD IN BOTH HEADSETS (CPG AND PILOT CSC PANELS: NAV B CONTROL ACTIONED AND ADJUSTED) TM 11–1520–238–23–2 VIDEO RECORDER AUDIO CANNOT BE PLAYED BACK (CPG AND PILOT CSC PANELS: NAV B CONTROL ACTIONED AND ADJUSTED) TM 11–1520–238–23–2 VIDEO RECORDER AUDIO IS HEARD BUT TUNE METER SHOWS NO INDICATION (ADF RCVR CONTROL PANEL: CW/VOICE/TEST SWITCH SET TO VOICE AND MODE SWITCH SET TO COMP) TM 11–1520–238–23–2 AUTOMATIC DIRECTION FINDER (ADF) AN/ARN–89 AUDIO IS NOT HEARD AND NO TUNE METER INDICATION IS PRESENT (ADF RCVR CONTROL PANEL: CW/VOICE/TEST SWITCH SET TO VOICE AND MODE SWITCH SET TO COMP) TM 11–1520–238–23–2 AUTOMATIC DIRECTION FINDER (ADF) AN/ARN–89 AUDIO IS NOT HEARD IN PILOT OR CPG HEADSET AND TUNE METER INDICATION IS PRESENT (ADF RCVR CONTROL PANEL: MODE SWITCH SET TO ANT AND CW/VOICE/TEST SWITCH SET TO VOICE) TM 11–1520–238–23–2 AUTOMATIC DIRECTION FINDER (ADF) AN/ARN–89 AUDIO IS NOT PRESENT AND SAFE LIGHT ON PILOT ARM/SAFE INDICATOR IS LIGHTED (PILOT FIRE CONTROL PANEL: MASTER SWITCH SET TO SAFE) TM 1–1520–238–T–6 SQUAT SWITCH SYSTEM AUDIO IS NOT PRESENT AND SAFE LIGHT ON PILOT ARM/SAFE INDICATOR IS NOT LIGHTED (SQUAT SWITCH FIXTURE INSTALLED) TM 1–1520–238–T–6 SQUAT SWITCH SYSTEM